基于DSP的望远镜液压控制系统  

Hydraulic control system of astronomical telescope based on DSP

作　　者：赵永历[1] 陈欣扬[2] 潘红鑑[2] 祝杰[2] 胡涛[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072 [2]中国科学院上海天文台,上海200030

出　　处：《电子技术应用》2013年第3期23-26,共4页Application of Electronic Technique

摘　　要：依靠液压系统支撑的天文望远镜在正常工作过程中往往要求其油(液)压保持在某一稳定值。为此,设计了基于DSP的液压模糊控制系统。该系统采用TMS320F2812 DSP芯片作为微处理器,控制相应的外围电机驱动电路;利用传感器测得的油压信号与目标值之间的偏差,经模糊控制器计算处理后输出相应占空比的PWM波形,从而调节油泵电机的运行频率,以实现液压系统油压的稳定。现场运行结果表明,该系统可以有效消除外界环境因素的干扰,保证了油压的稳定。The astronomical telescope is supported by a kind of hydraulic system, which should ensure the oil pressure to be stable. In order to achieve this aim, a hydraulic fuzzy control system based on DSP is introduced in this paper. This system adopts TMS320F2812 DSP as the microprocessor, which can master the operating mode of the motor to control the oil pressure. The PWM frequency modulation is used to control the rotate speed of the motor according to the deviation between the practical oil pressure and the expected one which is processed by the fuzzy controller. The result shows that this system can make the oil pressure stable without being influenced by the surrounding＇s disturbance.

关 键 词：DSP 天文望远镜 模糊控制 油压 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]